Fatty Tissue Visualization 18 Hours after 133Xe Lung Ventilation Study

1993 ◽  
Vol 32 (05) ◽  
pp. 264-265 ◽  
Author(s):  
A. M. Bekier
Keyword(s):  
Healthy Volunteer ◽  
Lung Ventilation ◽  
The Body ◽  
Whole Body ◽  
Fatty Tissue ◽  
Whole Body Scan ◽  
Body Scan ◽  
Subcutaneous Fatty Tissue ◽  
The Individual ◽  
Radioactive Gases

SummaryIn order to check a new rebreathing unit for ventilation investigations of the lungs with radioactive gases, a 133Xe lung ventilation study was performed in a 56-year old healthy volunteer. The contamination check on the following day triggered a radiation warning caused by the retained xenon activity in the body. The whole-body scan performed 18 h after the inhalation showed clearly a faint delineation of the xenon activity, corresponding to the subcutaneous fatty tissue of the individual studied.

scholarly journals 446. Study of the Body Contouring Scan on Whole-Body Scan

1993 ◽  
Vol 49 (8) ◽  
pp. 1467
Author(s):  
Hiroaki Nagaoka ◽  
Masayuki Nagamine ◽  
Hiroshi Gakumazawa ◽  
Minoru Matsuda
Keyword(s):  
Body Contouring ◽  
The Body ◽  
Whole Body ◽  
Whole Body Scan ◽  
Body Scan

Techniques for Undertaking Dual-Energy X-Ray Absorptiometry Whole-Body Scans to Estimate Body Composition in Tall and/or Broad Subjects

2012 ◽  
Vol 22 (5) ◽  
pp. 313-322 ◽  
Author(s):  
Alisa Nana ◽  
Gary J. Slater ◽  
Will G. Hopkins ◽  
Louise M. Burke
Keyword(s):  
Body Composition ◽  
Dual Energy ◽  
The Body ◽  
Whole Body ◽  
Whole Body Scan ◽  
Body Scan ◽  
Physically Active ◽  
X Ray ◽  
Scanning Area ◽  
Dxa Scans

Dual-energy X-ray absorptiometry (DXA) is becoming a popular tool to measure body composition, owing to its ease of operation and comprehensive analysis. However, some people, especially athletes, are taller and/or broader than the active scanning area of the DXA bed and must be scanned in sections. The aim of this study was to investigate the reliability of DXA measures of whole-body composition summed from 2 or 3 partial scans. Physically active young adults (15 women, 15 men) underwent 1 whole-body and 4 partial DXA scans in a single testing session under standardized conditions. The partial scanning areas were head, whole body from the bottom of the chin down, and right and left sides of the body. Body-composition estimates from whole body were compared with estimates from summed partial scans to simulate different techniques to accommodate tall and/or broad subjects relative to the whole-body scan. Magnitudes of differences in the estimates were assessed by standardization. In simulating tall subjects, summation of partial scans that included the head scan overestimated whole-body composition by ~3 kg of lean mass and ~1 kg of fat mass, with substantial technical error of measurement. In simulating broad subjects, summation of right and left body scans produced no substantial differences in body composition than those of the whole-body scan. Summing partial DXA scans provides accurate body-composition estimates for broad subjects, but other strategies are needed to accommodate tall subjects.

scholarly journals MON-437 False Positive I-131 Uptake

2020 ◽  
Vol 4 (Supplement_1) ◽  
Author(s):  
Pavan Rajendra Yadav ◽  
Raul J Idea
Keyword(s):  
False Positive ◽  
Ovarian Follicle ◽  
Thyroid Tissue ◽  
Cystic Teratoma ◽  
High Specificity ◽  
Whole Body ◽  
Fatty Tissue ◽  
Whole Body Scan ◽  
Body Scan ◽  
Specificity And Sensitivity

Abstract Background Iodine has high specificity for thyroid tissue hence it plays very important role is management for differentiated thyroid cancer. Despite its high specificity and sensitivity, false-positive I-131 uptake could be seen on whole body scan (WBS). We are presenting a case of false positive intense uptake in lung due to bronchiectasis. Clinical case Patient is a 78-year-old Asian female who initially present with left sided 5.8 cm thyroid nodule. The fine needle aspiration was performed, and the cytology came back as Bethesda category III. Per our institute protocol a molecular mutation panel was sent, which came back with NRAS mutation. She underwent total thyroidectomy and the histology showed 6.2 cm Follicular carcinoma with extensive angioinvasion, oncocyte type. She received adjuvant 165.2 mci of RAI. Per protocol she had a one-week I-131whole body scan. There was intense abnormal uptake in left mid and upper chest. The stimulate thyroglobulin with a TSH of >100mcIU/ml was only 0.17 ng/dl with Tab negative. Patient subsequently had a PET CT which showed a faint diffuse FDG activity noted in the cystic bronchiectasis predominantly in the left apex, lingula, and right middle lobe. Patient informed us that she has history of pulmonary tuberculosis in 1970’s for which she was successfully treated in her home country. We had 10-year-old chest X-ray which showed stable cystic bronchiectasis lesion in the region of intense uptake. Discussion Although I131 whole body scan has high specificity and sensitivity but physician should be aware of potential false positive uptake to avoid unnecessary intervention. In a retrospective evaluation i the most common non-thyroid conditions included were bronchiectasis, lung infection, subcutaneous injection into gluteal fatty tissue, aortic calcification, benign bone cyst, vertebral hemangioma, recent nonthyroidal surgical procedure site, rotator cuff injury, mature cystic teratoma and ovarian follicle cyst). The accumulation of the bronchial secretion is the proposed mechanism of the high false positive uptake in bronchiectasis. Endnotes i Mol Imaging Radionucl Ther 2018; 27:99–106 DOI:10.4274/mirt.37450

Abstract #53: False-Positive 131I Whole-Body Scan Due to a Lactating Breast in a Patient with Thyroid Cancer

2003 ◽  
Vol 9 ◽  
pp. 21
Author(s):  
Puneet S. Arora ◽  
Manfred Blum
Keyword(s):  
Thyroid Cancer ◽  
False Positive ◽  
Whole Body ◽  
Whole Body Scan ◽  
Body Scan ◽  
Lactating Breast

Evaluation of whole-body scan, stimulated thyroglobulin after thyroxine withdrawal vs recombinant TSH administration according to the risk groups of tumor recurrence

2013 ◽  
Author(s):  
Mustafa Sahin ◽  
Berna Imge Aydogan ◽  
Bagdagul Yuksel ◽  
Murat Faik Erdogan ◽  
Sevim Gullu ◽  
...  
Keyword(s):  
Tumor Recurrence ◽  
Risk Groups ◽  
Whole Body ◽  
Whole Body Scan ◽  
Body Scan ◽  
Recombinant Tsh

Undetectable Thyroglobulin in Patients With Differentiated Thyroid Carcinoma and Residual Radioiodine Uptake on a Postablation Whole-Body Scan

2011 ◽  
Vol 36 (2) ◽  
pp. 109-112 ◽  
Author(s):  
Luca Giovanella ◽  
Sergio Suriano ◽  
Luca Ceriani ◽  
Frederik Anton Verburg
Keyword(s):  
Thyroid Carcinoma ◽  
Differentiated Thyroid Carcinoma ◽  
Whole Body ◽  
Whole Body Scan ◽  
Body Scan ◽  
Radioiodine Uptake

18F-FDG PET in the Management of Differentiated Thyroid Cancer in Patients with High Serum Thyroglobulin and Negative I-131 Whole Body Scan.

2010 ◽  
pp. P1-573-P1-573
Author(s):  
R G Martins ◽  
A P Santos ◽  
J Couto ◽  
A P Barbosa ◽  
J Teixeira ◽  
...  
Keyword(s):  
Thyroid Cancer ◽  
Fdg Pet ◽  
Differentiated Thyroid Cancer ◽  
High Serum ◽  
Whole Body ◽  
Whole Body Scan ◽  
Body Scan ◽  
Serum Thyroglobulin ◽  
18F Fdg
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